Method and device for quickly replacing oil gas pipe section

A replacement method and pipe section technology, which is applied in auxiliary devices, measuring devices, surveying and navigation, etc., can solve the problems of oil and gas pipeline explosion, low work efficiency, and low precision of pipe sections, and achieve the effect of safe replacement and accurate measurement
CN103286486AInactive Publication Date: 2013-09-11湛江南海西部石油合众近海建设有限公司 +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
湛江南海西部石油合众近海建设有限公司
Publication Date
2013-09-11
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a method and a device for quickly replacing an oil gas pipe section. The method comprises the steps of measuring the pipe section accurately on line by laser, performing data-graph transformation, prefabricating the pipeline accurately off line, and replacing the pipe section quickly on site. The pipe section to be replaced does not need to be disassembled on site in advance; the pipeline can normally operate all the time before the pipe section is replaced; and production is not stopped. The space geometric morphology data of the replaced pipe section is measured accurate by a laser overall meter and a measuring maker, so that the data of the replaced pipe section is acquired, and on-line, quick and accurate measurement of the pipe section is realized. The measuring data of the pipe section is transformed into a replacing pipe section welding technical graph by special data-image processing software. Off-line accurate prefabrication of the replacing pipe is finished by the obtained replacing pipe section welding technical graph and a special replacing pipe section welding device. The pipe section is replaced quickly and safely by the prefabricated pipe section on the pipeline maintaining site and under the condition that production is stopped for a short time.
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Description

technical field

[0001] The invention belongs to a method and a device for quick replacement of oil and gas pipeline sections. Background technique

[0002] The offshore oil industry occupies an important position in my country and has a good development prospect. my country's offshore oil exploration and production has a history of more than 40 years. At present, many offshore oil platforms, oil and gas processing terminal pipe network systems and their facilities are gradually entering into maintenance, replacement and technical transformation. peak period. Taking CNOOC Nanhai West Petroleum Company as an example, at present, the annual workload for oil and gas pipeline transformation and replacement of drilling wells, oil production platforms and oil and gas processing terminals is about 10,000 meters per year, and the direct annual output value is about 200 million yuan. Retrofit work continues to grow at a rate of about 10%.

[0003] The maintenance and replacement of o...

Claims

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